nanomechanical Biofilm AmplitudeModulation FrictionForce Dopped ito_film Imprint Polystyrene 2-vinylpyridine FM_SKPM BFO Inorganic_Compound IcelandSpar NUS_NNI_Nanocore MoirePattern piezoelectric force microscopy MfmAmplitude Croatia conductive semifluorinated_alkanes LiBattery Dimethicone CHRYSALIS_INC organic_polymer Stiffness Cobalt Hexatriacontane China ForceVolumeImage exfoliate HanyangUniv Hysteresys Protein Patterns blended polymers